Class Adafruit_GPS
Adafruit_GPS Class
Members
Public Constructors |
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|---|---|
Adafruit_GPS::Adafruit_GPS |
Constructs an Adafruit_GPS object |
Public Methods |
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Adafruit_GPS::begin |
Initialize serial communication |
*Adafruit_GPS:: lastNMEA |
Returns the last NMEA line received and unsets the received flag |
Adafruit_GPS:: newNMEAreceived |
Check to see if a new NMEA line has been received |
Adafruit_GPS:: common_init |
Initialization code used by all constructor types |
Adafruit_GPS:: sendCommand |
Send a command to the GPS device |
Adafruit_GPS:: pause |
Pause/unpause receiving new data |
Adafruit_GPS:: parseHex |
Read a Hex value and return the decimal equivalent |
Adafruit_GPS:: read |
Read one character from the GPS device |
Adafruit_GPS:: parse |
Parse an NMEA string |
Adafruit_GPS:: wakeup |
Wake the sensor up |
Adafruit_GPS:: standby |
Standby Mode Switches |
Adafruit_GPS::waitForSentence |
Wait for a specified sentence from the device |
Adafruit_GPS::LOCUS_StartLogger |
Start the LOCUS logger |
Adafruit_GPS::LOCUS_StopLogger |
Stop the LOCUS logger |
Adafruit_GPS::LOCUS_ReadStatus |
Read the logger status |
Adafruit_GPS::Adafruit_GPS
#include <Adafruit_GPS.h>
#include <SoftwareSerial.h>
// If you’re using a GPS module:
// Connect the GPS Power pin to 3.3V
// Connect the GPS Ground pin to ground
// Connect the GPS TX (transmit) pin to Digital 0
// Connect the GPS RX (receive) pin to Digital 1
#if defined(BOARD_RTL8195A)
SoftwareSerial mySerial(0, 1);
#elif defined(BOARD_RTL8710)
SoftwareSerial mySerial(17, 5); // RTL8710 need change GPS TX/RX to pin 17 and 5
#else
SoftwareSerial mySerial(0, 1);
#endif
Adafruit_GPS GPS(&mySerial);
// Set GPSECHO to ‘false’ to turn off echoing the GPS data to the Serial console
// Set to ‘true’ if you want to debug and listen to the raw GPS sentences.
#define GPSECHO false
void setup()
{
Serial.begin(38400);
Serial.println(“Adafruit GPS library basic test!”);
// 9600 NMEA is the default baud rate for Adafruit MTK GPS’s- some use 4800
GPS.begin(9600);
// uncomment this line to turn on RMC (recommended minimum) and GGA (fix data) including altitude
GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
// uncomment this line to turn on only the “minimum recommended” data
//GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCONLY);
// For parsing data, we don’t suggest using anything but either RMC only or RMC+GGA since
// the parser doesn’t care about other sentences at this time
// Set the update rate
GPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ); // 1 Hz update rate
// For the parsing code to work nicely and have time to sort thru the data, and
// print it out we don’t suggest using anything higher than 1 Hz
// Request updates on antenna status, comment out to keep quiet
GPS.sendCommand(PGCMD_ANTENNA);
delay(1000);
// Ask for firmware version
mySerial.println(PMTK_Q_RELEASE);
}
uint32_t timer = millis();
void loop() // run over and over again
{
// in case you are not using the interrupt above, you’ll
// need to ‘hand query’ the GPS, not suggested :(
// read data from the GPS in the ‘main loop’
char c = GPS.read();
// if you want to debug, this is a good time to do it!
if (GPSECHO)
if (c) Serial.print(c);
// if a sentence is received, we can check the checksum, parse it…
if (GPS.newNMEAreceived()) {
// a tricky thing here is if we print the NMEA sentence, or data
// we end up not listening and catching other sentences!
// so be very wary if using OUTPUT_ALLDATA and trytng to print out data
//Serial.println(GPS.lastNMEA()); // this also sets the newNMEAreceived() flag to false
if (!GPS.parse(GPS.lastNMEA())) // this also sets the newNMEAreceived() flag to false
return; // we can fail to parse a sentence in which case we should just wait for another
}
// if millis() or timer wraps around, we’ll just reset it
if (timer > millis()) timer = millis();
// approximately every 2 seconds or so, print out the current stats
if (millis() - timer > 2000) {
timer = millis(); // reset the timer
Serial.print(”nTime: “);
Serial.print(GPS.hour, DEC); Serial.print(‘:’);
Serial.print(GPS.minute, DEC); Serial.print(‘:’);
Serial.print(GPS.seconds, DEC); Serial.print(‘.’);
Serial.println(GPS.milliseconds);
Serial.print(“Date: “);
Serial.print(GPS.day, DEC); Serial.print(‘/’);
Serial.print(GPS.month, DEC); Serial.print(“/20”);
Serial.println(GPS.year, DEC);
Serial.print(“Fix: “); Serial.print((int)GPS.fix);
Serial.print(” quality: “); Serial.println((int)GPS.fixquality);
if (GPS.fix) {
Serial.print(“Location: “);
Serial.print(GPS.latitude, 4); Serial.print(GPS.lat);
Serial.print(”, “);
Serial.print(GPS.longitude, 4); Serial.println(GPS.lon);
Serial.print(“Location (in degrees, works with Google Maps): “);
Serial.print(GPS.latitudeDegrees, 4);
Serial.print(”, “);
Serial.println(GPS.longitudeDegrees, 4);
Serial.print(“Speed (knots): “); Serial.println(GPS.speed);
Serial.print(“Angle: “); Serial.println(GPS.angle);
Serial.print(“Altitude: “); Serial.println(GPS.altitude);
Serial.print(“Satellites: “); Serial.println((int)GPS.satellites);
}
}
}
Adafruit_GPS::begin
*Adafruit_GPS::lastNMEA
Adafruit_GPS::newNMEAreceived
Adafruit_GPS::common_init
Adafruit_GPS::sendCommand
Adafruit_GPS::pause
Adafruit_GPS::parseHex
Adafruit_GPS::read
Adafruit_GPS::parse
Adafruit_GPS::wakeup
Adafruit_GPS::standby
Adafruit_GPS::waitForSentence
Adafruit_GPS::LOCUS_StartLogger
Adafruit_GPS::LOCUS_StopLogger
Adafruit_GPS::LOCUS_ReadStatus